U.S. customs officials are denying claims by a pregnant illegal immigrant who says she was denied medical care while being deported back to China – causing her to miscarry her twins.

Zhenxing Jiang, 32, was meeting with an immigration officer in Philadelphia last week while her husband and two sons waited in the lobby. Officials hustled the three-months-pregnant Jiang out a back door and into a van.

Jiang said she bumped her belly against the van and complained of stomach pains while being driven to JFK Airport for a flight to China, but she said officials ignored her.

Someone at the airport finally called 911 and she was rushed to Jamaica Hospital, where she suffered a miscarriage.

In a statement released yesterday, officials at Immigration and Customs Enforcement said her allegations are “categorically false.”

“After learning that Ms. Jiang was pregnant, ICE officials took special care in handling her and facilitating her transportation” to JFK, the statement said.

Officials also said that while they were driving to the airport, Jiang “expressed no problems or need for medical attention.” But they said before boarding her flight she asked to use a restroom.

After several minutes in the restroom, she complained of stomach pains and “indicated that she needed an ambulance,” the statement said. It added she was taken by ambulance to a hospital “where she received treatment.”

Her family called that account “absurd” and demanded an investigation.